/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
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package org.apache.spark.sql.catalyst.plans.logical

import org.apache.spark.sql.catalyst.expressions.Attribute
import org.apache.spark.sql.catalyst.expressions.SortOrder

case class EmptyRelation(logical: LogicalPlan) extends LeafNode {
  override val isStreaming: Boolean = logical.isStreaming

  override val outputOrdering: Seq[SortOrder] = logical.outputOrdering

  override def output: Seq[Attribute] = logical.output

  override def computeStats(): Statistics = Statistics(sizeInBytes = 0, rowCount = Some(0))

  override def maxRows: Option[Long] = Some(0)

  override def maxRowsPerPartition: Option[Long] = Some(0)
}
